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François Maréchal

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Related publications (432)

Page 3 of 22

Multi-objective Optimization of Solid Oxide Fuel Cell–Gas Turbine Hybrid Cycle and Uncertainty Analysis

François Maréchal, Shivom Sharma, Emanuela Peduzzi, Ayse Dilan Celebi

Chemical process optimization problems often have multiple and conflicting objectives, such as capital cost, operating cost, production cost, profit, energy consumption and environmental impact. There are several conversion technologies that can convert Sy ...

University of Ljubljana2016

Thermal profile construction for energy-intensive industrial sectors

François Maréchal, Ivan Daniel Kantor, Maziar Kermani, Anna Sophia Wallerand, Hür Ebuzer Bütün, Greta Martha Van Eetvelde, Alessio Santecchia, Franz Wolf

Industrial plant data are difficult to find in academic literature for a number of reasons such as confidentiality, and thus intentional masking, or problem size reduction. These common practices limit the ability of researchers to apply novel methods to r ...

2018

Key Energy and Technological Aspects of Three Innovative Concepts of District Energy Networks

François Maréchal, Daniel Favrat, Samuel Henchoz, Patrick Chatelan

Energy needs in urban areas are heterogeneous by their nature, spatial distribution and temperature level required. Three concepts of district energy networks that could provide the energy services efficiently to a city centre are compared. The focus is on ...

2016

Co-production of Hydrogen and Electricity from Lignocellulosic Biomass: Process Design and Thermo-economic Optimization

François Maréchal, Laurence Tock

The thermochemical production of hydrogen from lignocellulosic biomass is systematically analyzed by developing environomic models combining thermodynamics with economic analysis, process integration techniques and optimization strategies for the conceptua ...

Pergamon-Elsevier Science Ltd2011

Optimal Operations and Resilient Investments in Steam Networks

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde

Steam is a key energy vector for industrial sites, most commonly used for process heating and cooling, cogeneration of heat and mechanical power as a motive fluid or for stripping. Steam networks are used to carry steam from producers to consumers and betw ...

2016

Integrating rate based models into multi-objective optimisation of process designs using surrogate models

François Maréchal, Levent Sinan Teske

Multi-objective optimisation (MOO) of super-structured process designs are expensive in CPU- time because of the high number of potential configurations and operation conditions to be calculated. Thus single process units are generally represented by simpl ...

2013

Techno-economic analysis of ammonia to hydrogen and power pathways considering the emerging hydrogen purification and fuel cell technologies

François Maréchal, Jan Van Herle, Xinyi Wei, Du Wen

Ammonia serves as a promising hydrogen carrier and energy storage medium due to its high hydrogen content, ease of transport, and well-established production infrastructure. This study presents a comprehensive techno-economic analysis of ammonia-to‑hydroge ...

2025

Optimal design of solid-oxide electrolyzer based power-to-methane systems: A comprehensive comparison between steam electrolysis and co-electrolysis

François Maréchal, Jan Van Herle, Stefan Diethelm, Ligang Wang, Hossein Madi, Maria del Mar Perez Fortes

Power-to-methane technologies have been regarded as a promising alternative to offer small or large-scale, long-timescale (daily/weekly/seasonal) energy storage as well as the opportunity of utilizing CO2. The performance of the core component, the electro ...

2018

Design and optimization of a solid oxide fuel cell-inverted gas turbine integrated system with zero carbon emission for distributed cogeneration

François Maréchal, Shivom Sharma

Solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system is an efficient and potential method for distributed energy supply. The system layout, component operating parameters, system-level heat integration, component selection and design, etc., determine ...

Elsevier2022

Thermo economic analysis for the optimal conceptual design of biomass gasification energy conversion systems

François Maréchal, Martin Gassner

This study addresses the thermo economic assessment of a biomass gasification, gas cleaning and energy conversion process, with particular attention given to tar control and the communication of the process design rationale. Product distributions were esti ...

2006

The use of GVL for holistic valorization of biomass

François Maréchal

This work presents solutions for the holistic utilization of lignocellulosic biomass based on the "lignin first " concept. Biomass is fractionated by employing gamma-Valerolactone (GVL) and formaldehyde solvents to effectively extract and protect the ligni ...

PERGAMON-ELSEVIER SCIENCE LTD2022

A Holistic Methodology for Optimizing Industrial Resource Efficiency

François Maréchal, Adriano Viana Ensinas, Ivan Daniel Kantor, Julia Granacher, Maziar Kermani, Anna Sophia Wallerand

Efficient consumption of energy and material resources, including water, is the primary focus for process industries to reduce their environmental impact. The Conference of Parties in Paris (COP21) highlighted the prominent role of industrial energy effici ...

2019

Thermo-environomic evaluation of the ammonia production

François Maréchal, Laurence Tock, Matthieu Perrenoud

Within the global challenge of sustainable energy supply and greenhouse gas emissions mitigation, carbon capture and storage (CCS) and the deployment of renewable resources are considered as promising solutions. In this context, the production of ammonia m ...

SFGP2013

Early-stage decision making approach for the selection of optimally integrated biorefinery processes

François Maréchal, Shivom Sharma, Adriano Viana Ensinas, Ayse Dilan Celebi

Lignocellulosic biorefineries are the best non-petroleum alternatives for a sustainable development. In the biorefinery process design, it is important to implement an algorithm that allows the systematic generation and the evaluation of energy conversion ...

2017

CO2 Capture and Management Strategies for Decarbonizing Secondary Aluminium Production

François Maréchal, Daniel Alexander Florez Orrego, Meire Ellen Gorete Ribeiro Domingos, Dareen Zuhir Omar Dardor

The production of aluminium largely depends on the use of fossil fuels, resulting in the emission of significant amounts of greenhouse gases. As the aluminium industry is working towards decreasing its environmental burdens, the elimination of direct emiss ...

2024

A Heat Load Distribution Method for Retrofitting Heat Exchanger Networks, 28th European Symposium on Computer Aided Process Engineering

François Maréchal, Ivan Daniel Kantor, Alberto Mian, Hür Ebuzer Bütün

Fluctuating energy prices, increasing environmental concerns, and regulations push industries toward more energy efficient plants. Process integration (PI) techniques, proven to be effective in providing solutions with improved energy and material efficien ...

2018

3D design and optimization of heat exchanger network for solid oxide fuel cell-gas turbine in hybrid electric vehicles

François Maréchal, Shivom Sharma

The development of electric vehicles is considered as one of the sustainable way in the automotive industry to reduce greenhouse gases emissions and to allow transportation sector to comply with environmental targets required in present and future years. D ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Heat pumping and renewable energy integration for decarbonizing brewery industry and district heating

François Maréchal, Daniel Alexander Florez Orrego, Meire Ellen Gorete Ribeiro Domingos

The energy integration of brewery plants and urban agglomerations has many benefits in terms of rational energy use and reduced environmental impact, especially during scenarios of uncertain supply chain and volatile market prices. In fact, the diversifica ...

Elsevier2023

A Review of Evaluation, Optimization and Synthesis of Energy Systems: Methodology and Application to Thermal Power Plants

François Maréchal, Shivom Sharma, Ligang Wang, Alberto Mian, Tzu-En Lin

To reach optimal/better conceptual designs of energy systems, key design variables should be optimized/adapted with system layouts, which may contribute significantly to system improvement. Layout improvement can be proposed by combining system analysis wi ...

2018

Integration of deep geothermal energy and woody biomass conversion pathways in urban systems

François Maréchal, Léda Gerber, Stefano Moret, Emanuela Peduzzi

Urban systems account for about two-thirds of global primary energy consumption and energy-related greenhouse gas emissions, with a projected increasing trend. Deep geothermal energy and woody biomass can be used for the production of heat, electricity and ...

Elsevier2016